diff options
Diffstat (limited to 'wcsutil/hstwcs.py')
| -rw-r--r-- | wcsutil/hstwcs.py | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/wcsutil/hstwcs.py b/wcsutil/hstwcs.py index 907f215..b4e9123 100644 --- a/wcsutil/hstwcs.py +++ b/wcsutil/hstwcs.py @@ -172,16 +172,15 @@ class HSTWCS(WCS): CX10, CX11, CY10, CY11, IDCSCALE, IDCTHETA, IDCXREF, IDCYREF, IDCV2REF, IDCV3REF """ - - if self.idctab == None or self.idctab == ' ': + if self.idctab in [None, '', ' ','N/A']: #Keyword idctab is not present in header - check for sip coefficients - if header.has_key('IDCSCALE'): + if header is not None and header.has_key('IDCSCALE'): self._readModelFromHeader(header) else: print "Distortion model is not available: IDCTAB=None\n" self.idcmodel = None elif not os.path.exists(fileutil.osfn(self.idctab)): - if header.has_key('IDCSCALE'): + if header is not None and header.has_key('IDCSCALE'): self._readModelFromHeader(header) else: print 'Distortion model is not available: IDCTAB file %s not found\n' % self.idctab @@ -262,19 +261,19 @@ class HSTWCS(WCS): h = altwcs.pc2cd(h, key=self.wcskey) if idc2hdr: - h.ascard.extend(self._idc2hdr()) - + for card in self._idc2hdr(): + h.update(card.key,value=card.value,comment=card.comment) try: del h.ascard['RESTFRQ'] del h.ascard['RESTWAV'] except KeyError: pass if sip2hdr and self.sip: - cards = self._sip2hdr('a') - h.ascard.extend(cards) - cards = self._sip2hdr('b') - h.ascard.extend(cards) - + for card in self._sip2hdr('a'): + h.update(card.key,value=card.value,comment=card.comment) + for card in self._sip2hdr('b'): + h.update(card.key,value=card.value,comment=card.comment) + try: ap = self.sip.ap except AssertionError: @@ -285,11 +284,11 @@ class HSTWCS(WCS): bp = None if ap: - cards = self._sip2hdr('ap') - h.ascard.extend(cards) + for card in self._sip2hdr('ap'): + h.update(card.key,value=card.value,comment=card.comment) if bp: - cards = self._sip2hdr('bp') - h.ascard.extend(cards) + for card in self._sip2hdr('bp'): + h.update(card.key,value=card.value,comment=card.comment) return h |